maintenance/archives/patch-change_tag.sql

   1 -- A table to track tags for revisions, logs and recent changes.
   2 -- Andrew Garrett, 2009-01
   3 CREATE TABLE /*_*/change_tag (
   4         ct_rc_id int NULL,
   5         ct_log_id int NULL,
   6         ct_rev_id int NULL,
   7         ct_tag varchar(255) NOT NULL,
   8         ct_params BLOB NULL
   9 ) /*$wgDBTableOptions*/;
  10
  11 CREATE UNIQUE INDEX /*i*/change_tag_rc_tag ON /*_*/change_tag (ct_rc_id,ct_tag);
  12 CREATE UNIQUE INDEX /*i*/change_tag_log_tag ON /*_*/change_tag (ct_log_id,ct_tag);
  13 CREATE UNIQUE INDEX /*i*/change_tag_rev_tag ON /*_*/change_tag (ct_rev_id,ct_tag);
  14 -- Covering index, so we can pull all the info only out of the index.
  15 CREATE INDEX /*i*/change_tag_tag_id ON /*_*/change_tag (ct_tag,ct_rc_id,ct_rev_id,ct_log_id);